GB/T 22806-2008Ivory board (English PDF)

Foreword

The standard-setting in the original light industry standard QB/T 3523-1999 "white cardboard" basis.

The standard proposed by China National Light Industry Council.

The standard paper by the National Standardization Technical Committee (SAC/TC141) centralized.

1 Scope

This standard specifies the white cardboard product classification, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage.

This standard applies to the surface layer, the bottom with bleach wood pulp-based, the intermediate layer can be added with a mechanical pulp, uncoated surface of the hard cardboard. That Products are mainly used for production of printed art prints or cartons.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 450 and take samples to an aspect of paper and paperboard samples, positive and negative determination (GB/T 450-2008, ISO 186. 2002, MOD) Determination of

GB/T 451.1 Paper and board size and skewness

GB/T 451.2 Paper and paperboard quantitative determination (GB/T 451.2-2002, eqv ISO 536:1995)

GB/T 451.3 Paper and board - Determination of thickness (GB/T 451.3-2002, idt ISO 534. 1988)

GB/T 456 Paper and board - Determination of smoothness (Buick method) (GB/T 456-2002, idt ISO 5627:1995)

GB/T 457-2008 Determination of paper and cardboard folding endurance (ISO 5626:1993, MOD)

GB/T 462 paper, board and pulp - Determination of water sample (GB/T 462-2008; ISO 287. 1985, MOD; ISO 638. 1978, MOD)

GB/T 1539 Determination of cardboard bursting strength (GB/T 1539-2007, ISO 2759:2001, IDT)

GB/T 1540 Determination of absorbent paper and cardboard Cobb method Determination of

GB/T 1541 Paper and paperboard dust degree

GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan (GB/T 2828.1-2003, ISO 2859-1:1999, IDT)

GB/T 7974 paper, paperboard and pulp brightness (whiteness) measured diffusion/vertical method (GB/T 7974-2002, neq ISO 2470. 1999)

GB/T 10342-2002 Packaging and paper flags

GB/T 10739 paper, paperboard and pulp sample handling and testing of standard atmospheric conditions (GB/T 10739-2002, eqv ISO 187:1990)

GB/T 21244 Zhixin

GB/T 22364-2008 Determination of paper and cardboard bending stiffness (ISO 2493:1992, MOD; ISO 5629. 1983, MOD)

3 Category

3.1 by mass of white cardboard divided into superior products, first-class products, qualified three levels.

3.2 white cardboard divided into two peace paperboard web

4 Technical Requirements

4.1 White cardboard technical indicators should be consistent with Table 1 or order contract provisions.